OIL WELL BLOWOUT PREVENTER WITH SHEARING AND SEALING RAMS,申请号GB19800014306-传众专利搜索

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发明名称	OIL WELL BLOWOUT PREVENTER WITH SHEARING AND SEALING RAMS
摘要
申请公布号	GB2051927(A)	申请公布日期	1981.01.21
申请号	GB19800014306	申请日期	1980.04.30
申请人	HYDRIL CO	发明人
分类号	B26D3/16;B23D21/00;E21B29/08;E21B33/06;(IPC1-7):E21B33/06	主分类号	B26D3/16
代理机构		代理人
主权项
地址

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